Luas Lingkaran

2 x $$\pi$$  x r

$$\pi\$$  x r $$^2$$  

$$\pi$$  x r x r

$$\frac{1}{2}$$  x $$\pi$$  x r

$$1\ x\ \pi\ x\ r$$  

$$\frac{1}{4}\pi d^2$$  

$$\pi$$  x   $$r^2$$  

$$2xrxr$$  

$$\pi\ x\ d$$  

$$\frac{1}{4}\pi r^2$$  

$$\frac{1}{2}\pi dd$$  

$$\frac{1}{4}\pi d^2$$  

$$154\ cm^2$$  

$$21,9\ cm^2$$  

$$145\ cm^2$$  

$$144\ cm^2$$  

$$3,14\ cm^2$$  

$$7,85\ cm^2$$  

$$78,5\ cm^2$$  

$$314\ cm^2$$  

$$\frac{1}{2}\ x\ \frac{1}{4}\ x\ \pi\ x\ r\ x\ r$$  

$$\frac{1}{2}\ x\ \frac{1}{4}\ x\ \pi\ x\ d^2$$  

$$\frac{1}{2}\ x\ \pi\ x\ d\ x\ d$$  

$$\frac{1}{4}\ x\ \pi\ x\ d\ x\ d$$  

$$44cm^2$$  

$$14cm^2$$  

$$88\ cm^2$$  

$$22cm^2$$  

41

62

56

36

71

47

44

33

180

200

176

38